Condensing unit



Jude 1 6, 1 925.

P. A. BANCEL I CONDENSING, UNIT Filed April lb, 1923 2 Sheets-Sheet 2 v mvNToR BauLZLBanceL ATT place. Another object of theinvention is Patented June 16, 1925.

UNITED STATES PATENT OFFICE- not A. BANCEL, or Norma, NEW JERSEY, nssrenon T0 INGERSOLL-RAND oom- YPANY, OF JERSEY CITY, NEW JERSEY, A CORFQRATION OF NEW JERSEY.

, commnsmc UNIT.

Application filed A ril-1o, 1923; Serial No. 631,106.

To all whom it may concern:

,Be it known that I, PAUL A. BANCEL, a-cltizen of the United States, a resident of Nutley, county of Essex, and State of New of manufacture of condensing units havinga cooler and devap'orizer, in which the latter part of the total heat abstraction takes to produce a unitary construct-ion which is compact and occupies substantially-the mmimum of space, with less number of parts than heretofore, and simplified piping.

The invention is shownin one of its preferred forms in the accompanying drawing, in which-'- I igure 1 is a side elevation of a condensing unit,

Figure 2 is an end elevation partly in transverse section,

Figure 3 is a longitudinal sectional elevation through the cooler of Figure 2 on the line 3-3, looking in the direction of the arrows, a,

Figure; is a detail transverse sectional top lan view ofa portion of the cooler on the ine 4-4 of Figure 3 and also on "the line 4-4 of Figure 5 looking inthe direc-' tion of the arrows, and

Figure 5 is a detail transverse sectional elevation on the line 5-'5 of Figure 3, looking inthe direction of the arrows.

Referring to the drawings, the condenser A shown in Fi re 1 and partly broken away and in section inFigure 2, may be of any Suitable form, and is preferably a surface condenser, provided. with cooling ele-' ments in the form of the usual cooling tubes A. The condenser A may be of wedge shaped form, as shown, that is, larger at I the top and smaller at the bottom, and the mixture of condensablevapor and gas, as steam and air, is admittedto the top and after passin downwardly over the condensin su aces, passes out of the bottom throw: the outlet B.

The.pr'esent invention relates to the-ent1re condensing unit, which includes a cooler C, or that portionof the condensing unit in which the latter part of the total heat abstractiontakes place. The cooler G, in this instance, in the form of an augmenter cooler,

Substantially like that shown in my U. S. Patent No, 1,506,805, granted September 2,'

1924, for augmenter cooler, is adapted to be incorporated with the condenser A, and is preferably arranged with one side against the lower portion of one side of the condenser, as shown particularly in Figure 2, at

.an angle to the vertical axis of the condensel'gowing to the general ,shape of the condenser shell. The cooler C is preferably of wedge shaped or pyramidal form, that is, larger at'the bottomand smaller at the top,

although not necessarily of this form and the mixture of air and vapor coming from the condenser after the major portion of steam has been condensed, passes upwardly through the cooler, which is provided with multiple cooling elements or surfaces. A suitable evacuator, as a vacuum pump, may be connected to the cooler atthe outlet D preferably at one end of the casing. The function of the cooler, as well understood,

is to complete thecondensation of the vapor as the mixture flows from the surface condenser, and in accordance with my present construction, the'cooler preferably includes a devaporizer formed by the chamber E and associated parts, and an intercooler comprising the chamber F forming a part of the cooling apparatus. The devaporizing chamher E and the intercooler chamber. F are in communication at the top of the cooler, as indicated particularly in Figure 3, and a plain cover G is shown in the present instance, over the top of the .cooler atthe location at which one or more an menter GiBCtOIS of the jet type could be us to dis arge into the intercooler F and to increase the absolute pressure of air in the intercooler, as shown in my aforesaid patout and therein claimed.

The cooling apparatus C as a whole, is adapted to be .removably secured a ainst the flange H on the side of the con enser' A, as by-means of the bolts J and the s ace K between the wall of-the condenser s ell,

cooler forms a water chamber or compartmentfor the circulation of cooling water and the inner wall or tube sheet'L of the;

. through the cooling elements of the cooler.

The cooler is provided with an outer head 0 forming a water circulation compartment P between the head and the outer tube sheet Q of the cooler; cooler forms an inlet chamber R. at the bottom connecting with the space S at the lower portion of the condenser, so that the condensate may be Withdrawn through the common outlet T between the condenser and the cooler. j

I am not'to be understood as limiting the invention, except as defined in the claims, to any particular condenser or any particular cooler comprising a devaporizer and an intercooler, but for purposes of illustration I have showna devaporizer and intercooler provided with cooling elements in the form of hollow cores or grids U, mounted transversely in rows in the cooler, communicating with the water space K and the water head 0 'of the cooler. These grids may be like those described in my Patent No. 1,380,460, granted June 7th, 1921, for method and apparatus for devaporizing and cooling. The grids U may be mounted in the tube sheets in the cooler in any suitable manner, as by means of nipples V, and hand holes W are preferably provided for the cooler opposite each grid. The grids U are preferably closer together in the top rows than in the bottom rows, which decreases the width of the streams of flowing mixture, the greater the relative amount of air in the mixture.

As described in my said Patent No. 1,380,- 460, interference of air in the mixture with the process of condensation from the flowing stream can be largely eliminated by the proper disposition of skin resistance in the path of the flow, and I retard the flow of the mixture at points between the relatively cold condensing surfaces X of the grids, but remote from the surfaces themselves. In order to retard the flow of the steam and air at points between the surfaces X of the grids U, but remote from said surfaces, I have shown transverse fins or flanges Y formed on the grids U and lying in intermeshing relation in planes substantially normal to the core surfaces X. These fins or flanges Y interpose numerous skin friction surfaces between the cooling surfaces and retard the flow in planes normal to said surfaces. At the condensing surfaces proper, indicated at X, the skin resistance remains the same as before, and as though the flanges Y were absent.

The cooling water for the devaporizer andfor the cooler, is supplied through the common inlet a and through the inlet pipe (1' to the water head 0, through which the water is guided by the battle a and after passing through the grids of both the devaporizer and intercooler, is discharged at the common o et 6 r m the water space or compart- The casing of the.

ment K. This construction does away with extra piping to and from the intercooler and forms a cheaper and more compact construction than heretofore. The water enters at the water inlet 21 and is assumed to pass in any suitable manner to and through the main condenser A and is dischargedat the discharge outlet 0, so that the elements of the entire unit are supplied from a common water inlet a. The opening 03 is an atmospheric relief or exhaust opening for use as desired.

I claim: I

1. A condensing unit comprising a sur-- face condenser having condensing elements and a shell larger at the top andsmaller at the bottom with a vapor inlet at the top and an outlet at the bottom, and a cooler having deva porizing and cooling elements and a casing larger at the bottom andsmaller at the top with a vapor inlet at the bottom and an outlet at one end, one side of the cooler casing being removably connected against the side of the condenser shell with provision for a water space between the condenser and cooler, and connections for passing Water through the condensing elements of the condenser, and through the coolingand devaporizing elements of the cooler.

' 2. A condensing unit comprising a surface condenser having condensin elements and a shell larger at the to an smaller at the bottom with a vapor in et at the top and an outlet at the bottom, and a cooler having devaporizing and cooling elements and a casing larger at the bottom and smaller at an outlet at one end, one side of the cooler casing being removably connected against the side of the condenser shell with provision for a water space between the condenser and cooler, a common water inlet for the complete condensing unit, water outlet connections for the condenser and cooler, and connections whereby water is passed through the condensing elements of the conthe top with a vapor inlet at the bottom and i denser and through the coo-ling and devaporizing elements of the cooler.

3. A condenser unit comprising a surface condenser having condensing elements and a shell larger at the top and smaller at the bottom with a vapor inlet at the top and an outlet at the bottom, and a cooler having devaporizing and cooling elements and a casing larger at the bottom and smaller at the top with a vapor inlet at thebottom and an outlet at one end, said cooler casing being divided .into a devaporizing chamber and an intercooler chamber, the cooler casing being removably connected against the side of the condenser, and the shell of the condenser forming one side of the cooler, with a water space between the condenser and the cooler, and connections for passing water through t e c ndensing elements of the c ndenser and through the elements of the devaporiz-' ing chamber and intercooler chamber of the cooler.- a

L A condensing unit comprising a surface condenser having a shell, a cooler having devaporizing and cooling elements, one side of the cooler being removably connected against the side of the condenser shell with provisionf'or a water space between the con denser and cooler, an outer water head for the cooler, connections for supplying Water to said head, a baflle in the head for guiding the water through the head to and through the devaporizing and cooling "elements of the cooler, and'connections for discharging the water from the watergspace between the surface condenser and the cooler.

5. A condensing unit comprising asurface condenser having a shell, a cooler divided transversely into devaporizer and intercooler chambers, transversely extending devaporizing and cooling elements in said chambers respectively, one side of the cooler being removably connected against the side of the condenser shell,'with provision for a water space between the condenser and the cooler, an outer water head for the cooler,

respectively, and discharge connections for the condenser and for the vwater space between the condenser ,and the cooler.

In testimony whereof I have signed this. specification.

PAUL A. BANGEL. 

